A reddish brown North American burrowing marmot (Marmota monax), also called the woodchuck. It hibernates in the winter.

an adorable furry animal that burrows beneath the ground

a true hibernator

Groundhog (Sean Bernard) is a fictional superhero in the Marvel Comics Universe. His first appearance was in Alpha Flight Special #1.

Groundhog is a small logic game written in C++. The GUI is built with GTK. The purpose is to put balls in pockets of the same color by manipulating a maze of tubes.

a damn animal, and whether or not it sees it's shadow depends on where the sun is

Hot dog.